bbb bbd bbe bbi bbo bbs bdb bdd bde bdi bdo bds bdz be- beb bed bee bei beo bes bez bi- bib bid bie bii bio bis biz bob bod boe boi boo bos boz bsb bsd bse bsi bso bss bzd bze bzo bzs bzz dbb dbd dbe dbi dbo dbs dbz ddb ddd dde ddi ddo dds ddz de- deb ded dee dei deo des dez di- dib did die dii dio dis diz dob dod doe doi doo dos doz dsb dsd dse dsi dso dss dsz dzb dzd dze dzi dzo dzs ebb ebd ebe ebi ebo ebs ed- edb edd ede edi edo eds eeb eed eee eeo ees eib eid eie eii eio eis eo- eob eod eoe eoi eoo eos es- esb esd ese esi eso ess eze ezo ezs ezz i-d ibb ibd ibe ibi ibo ibs ibz idb idd ide idi ido ids ie- ied iee iei ies iib iid iie iii iio iis io- iob iod ioe ioi ioo ios is- isb isd ise isi iso iss ize izi izo izz o-i ob- obb obd obe obi obo obs odb odd ode odi odo ods oeb oed oee oei oeo oes oib oid oie oii oio ois oiz oo- oob ood ooi ooo oos os- osb osd ose osi oso oss oze ozo ozs ozz sbb sbd sbe sbi sbo sbs sdb sdd sde sdi sdo sds sdz se- seb sed see sei seo ses sez sib sid sie sii sio sis sob sod soe soi soo sos soz ss- ssb ssd sse ssi sso sss ssz szd sze szi zbb zbs zds zeb zed zee zeo zes zez zib zid zie zio zis ziz zo- zob zod zoe zoi zoo zos zse zsi zsz zzs zzz